As a GERMAN langhelper I seem not to have the Serlo rights to edit this page; so here is my proposual for the text passage we talked about:
From the functional point of view the tasks of Serlo's taxonomy are:
* arranging the hierarchy of topic pages and curriculum pages
* setting titles and descriptions of topic pages and curriculum pages
* structuring the display of Serlo's learning objects
"structuring ..." is not so good as
"arranging the display and order of Serlo's learning objects" , which you wrote above.
So my proposal now: Leave it like it is - even if the word "arrange" is used twice.